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mb/google/fatcat/var/kinmen: Fix touchscreen IRQ setting

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Previously, the touchscreen IRQ pin was not correctly configured to
GPP_F18_IRQ, which caused an unexpected interrupt storm and led to
the touchscreen becoming unresponsive. This change sets it to the
correct configuration. (schematics version 20250611_v31)

BUG=b:430200649
TEST= Ensure the touchscreen is working properly.
Ensure the interrupt count increases only when the screen is touched
via 'cat /proc/interrupts | grep ELAN'

Change-Id: I20cc9632df76acdfafd2968ece0dde8ee95cc791
Signed-off-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88360
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
This commit is contained in:
Ivy Jian 2025-07-09 10:42:34 +08:00 • committed by Matt DeVillier
commit 5b3063802e
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/google/fatcat/variants/kinmen/overridetree.cb
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@ -251,7 +251,7 @@ chip soc/intel/pantherlake
chip drivers/i2c/hid
register "generic.hid" = ""ELAN9004""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_F18)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_F18_IRQ)"
register "generic.detect" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F16)"
register "generic.reset_delay_ms" = "150"